NGC 2872
| Galaxy NGC 2872 |
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|---|---|
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| NGC 2872, NGC 2873 and NGC 2874 , SDSS image | |
| AladinLite | |
| Constellation | lion |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 09 h 25 m 42.5 s |
| declination | + 11 ° 25 ′ 56 ″ |
| Appearance | |
| Morphological type | E2 |
| Brightness (visual) | 11.9 likes |
| Brightness (B-band) | 12.9 mag |
| Angular expansion | 2.1 ′ × 1.8 ′ |
| Position angle | 171 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.010661 ± 0.000037 |
| Radial velocity | (3196 ± 11) km / s |
|
Stroke distance v rad / H 0 |
(138 ± 10) x 10 6 ly (42.2 ± 3.0) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | March 15, 1784 |
| Catalog names | |
| NGC 2872 • UGC 5018 • PGC 26733 • CGCG 062-033 • MCG + 02-24-008 • 2MASX J09254253 + 1125557 • Arp 307 NED01 • GC 1839, GC 1845 • H II 57, H II 546 • h 597 • | |
NGC 2872 is an elliptical galaxy from the Hubble type E2 in Leo on the ecliptic . It is estimated to be 138 million light years away from the Milky Way and has a diameter of around 90,000 ly. Together with NGC 2874, it forms the interacting galaxy pair Arp 307 . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This pair of galaxies belongs to the class Unclassified double galaxies .
The object was discovered on March 15, 1784 by the German-British astronomer William Herschel .
Web links
Commons : NGC 2872 - collection of images, videos, and audio files
literature
- Jeff Kanipe and Dennis Webb: The Arp Atlas of Peculiar Galaxies - A Chronicle and Observer's Guide , Richmond 2006, ISBN 978-0-943396-76-7